The seven brightest stars are commonly referred to as the Big Dipper in the U.S.
the answer to the question you are looking for is 2,3,4
1.amendments are proposed by. Both houses of congress passing it by a 2/3 vote. 2/3 of state legislatures requested a national convention to make an amendment.
2.amendments are ratified by. 3/4 of the state legislatures ratifying it. ...
3.For a cloture: 16 senators must sponsor the bill.
The answer is letters and artifacts